Solder Alloy 704 vs. ASTM A285 Carbon Steel
Solder alloy 704 belongs to the otherwise unclassified metals classification, while ASTM A285 carbon steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is solder alloy 704 and the bottom bar is ASTM A285 carbon steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 14 | |
| 110 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 51 | |
| 190 |
| Elongation at Break, % | 30 | |
| 30 to 34 |
| Poisson's Ratio | 0.36 | |
| 0.29 |
| Shear Modulus, GPa | 19 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 55 | |
| 380 to 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 62 | |
| 250 |
| Melting Completion (Liquidus), °C | 240 | |
| 1470 |
| Melting Onset (Solidus), °C | 220 | |
| 1420 to 1430 |
| Specific Heat Capacity, J/kg-K | 220 | |
| 470 |
| Thermal Conductivity, W/m-K | 50 | |
| 53 |
| Thermal Expansion, µm/m-K | 22 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 13 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 15 | |
| 8.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.5 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 19 | |
| 1.4 |
| Embodied Energy, MJ/kg | 320 | |
| 18 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.8 | |
| 13 |
| Stiffness to Weight: Bending, points | 17 | |
| 24 |
| Strength to Weight: Axial, points | 2.1 | |
| 13 to 16 |
| Strength to Weight: Bending, points | 4.3 | |
| 15 to 17 |
| Thermal Diffusivity, mm2/s | 30 | |
| 14 |
| Thermal Shock Resistance, points | 3.5 | |
| 12 to 14 |